When I import data using sqoop, the block size is 256MB. But, when I import data not using sqoop, the block size is 128MB. The setting "dfs.blocksize" is of course 128MB. I wonder why it is only 256MB when I use sqoop. I wonder if this is a configuration problem in sqoop or hdfs configuration problem.
sqoop import
--connect jdbc:oracle:thin:@$127.0.0.1:1521:SRDB \
--username abc \
--password \
--targetdir \
--query \
--fields-terminated-by \
--num-mappers \
--split-by